To fix the 100GB upload limit in All-in-One WP Migration without purchasing the official Unlimited Extension, you can use a known workaround involving a specific older version of the plugin and a minor code modification. The "100GB Fix" Process

  1. Don't use the "Import" form. Use FTP to upload the .wpress file to /wp-content/ai1wm-backups/.
  2. Go to the "Backups" section in WordPress and hit Restore.
  3. If that fails, edit constants.php to set AI1WM_MAX_FILE_SIZE to 214748364800.
  4. For massive sites, switch to WP-CLI: wp ai1wm restore backup.wpress.

Current versions of the plugin enforce a 512MB limit . You must downgrade to a version that allows manual configuration.

in your WordPress dashboard. The file you uploaded via FTP will appear there. Click Restore : Select "Restore" on that file to begin the migration. 3. Editing Plugin Core Files (Use Caution)

The Fix

Priya edited one line:

: Modern versions often block this edit. Download and install version 6.77 of the plugin. Access the Editor Plugin File Editor Select the Plugin All-in-One WP Migration from the dropdown menu. constants.php : Open the file named constants.php and search (Ctrl+F) for the string AI1WM_MAX_FILE_SIZE Change the Value : Locate the line that looks like define( 'AI1WM_MAX_FILE_SIZE', 2 << 28 ); and replace it with a much higher value. define( 'AI1WM_MAX_FILE_SIZE', 100 * 1024 * 1024 * 1024 ); Save Changes Update File . Your import limit should now reflect the new value. 2. The "Server-to-Server" Bypass

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